Improvement in refrigerators for steam-engines



W. A. LIGH THALL. REFRIGERATOR FOR STEAM ENGINES. No. 35,162. IATENTED MAY 6, 1862.

UNITED STATES PATENT OFFICE.

\YTLTJAM A. LTGH'IHALL, OF NElV YORK, N. Y.

IMPROVEMENT IN REFRIGERATORS FOR STEAM-ENGINES.

Specification forming part 01' Letters Patent No. 35,162, dated May 6, 1862.

clare thatthe 'tollowing isa [full and cxactdescription of the same,reference being had to i the accompanying drawings, and to the let 1 ers ol reference marked thereon, in which Figure l is a plan view; Fig. :3, a horizontal section 01' Fig. l with the cover removed; Fig. 3, a vertical and longitudinal section. taken through the line .1 .r, Fig. 1-; l ig. 1-. a crossj -section taken through the line 7) b, Fig. I); and

Fig. 5, a lmlgitudinal section taken through the line c c, Figs. 1 and t.

My invention relates to an improvement on the refrigerator patented to me by Letters Patei'it ot' the United States hearing date of February 211, 1%], (to which Letters Patent reference is hereby llltl(,l(;) and it consists in returning the lIljet tl(Hl-\\zlt(il' from one sec- 3 tion ot' the refrigerator to the other through a case or division, by which means the injecthin-water is subjected to the action of the i cooling or refrigerating water in an opposite tlow or direction. lug-water passes through the tubes of the refrigerator in one direction, while the heated injection-water (after passing through the bed-plate, air-pump, and hot well to the refrigerator) passes around and among the tubes in a contrary direction, the intent and purpose being that the coolest water (of the coolingavater) shall be applied to cooling down the injeetion-water to its lowest temperature 1 arranged and to be operated as and for the purpose set forth.

as it leaves the apparatus,

The case or shell A ol the refrigerator is made and the tubes (7 :u-rangeifl as set forth 1 in the Letters Patent bet'ore named, and the division-plates B are located and arranged as The cooling-water is taken therein set forth.

In other words, the coolinto the case to pass through the tubes C, through the nozzle T), and passes otf through the nozzle E.

F F are two diaphragin-plates, which divide the ap mratus into two sections, and which are separated from each other a sufficient distance to form a passage-way between them of sufficient area to pass through it the injectionwatcr that enters theapparatus through the nozzle G. These plates are provided with apertures e c, into the first of which the injection-water from the first section enters and passes through the length of the passage-way and enters and passes through the second to enter the second section, in order that it shall travel and pass over the tubes in a contrary direction to the current of the cooling-water entering through the nozzle D and passing off through the nozzle E. that enters the apparatus through the nozzle G is taken off through the nozzle H to the condenser to be reused, for the purpose of con- (lensing the steam exhausted into the condenser from the cylinder of the engine.

The advantage of exposing the current of injection-hater to the contrar current of cooling-water is that thecurrent of in jection-water is subjected to a constantly-decreasing temperature as it passes and travels toward the end of the apparatus, from whence it passes off to the condenser, so that it is reduced more nearly to the temperature of the cooling-water than if the currents of each run in the same direction.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

The con'ibination of the diaphragm-plates 1" F with the tubes 0 and division-plates B,

WM. A. LIGHTHALL. \Vitnesses:

FRANCIS S. Low,

D. H. GOULD.

The injcctiorrwater 

